While wisdom teeth that are healthy aid in chewing, tilted wisdom teeth can cause damage to the other teeth growing alongside them. According to research, if impacted wisdom teeth are not removed they can increase the risk of tooth decay and gum disease.According to the American Dental Association, patients should begin to have their wisdom teeth evaluated at 16. This way, a dentist will be on the lookout for any indication that the teeth are impacted, over-crowded, or that cavities / gum disease have begun to settle within the wisdom teeth or tissues surrounding the area. If it is discovered that removal is necessary, patients should do so around the age of 20. This is because the roots are underdeveloped and procedure complications are less likely to transpire.